Choice Card

A nucleus of hydrogen always has one proton (Z = 1), and in nature, 99.98% of all hydrogen nuclei have 0 neutrons (N = 0). What is the mass number A?

A nucleus of hydrogen always has one proton (Z = 1), and in nature, 99.98% of all hydrogen nuclei have 0 neutrons (N = 0). What is the mass number A?

2
A = N+Z = 0+1 = 1
0
A = N+Z = 0+1 = 1
1
Correct!
-1
A = N+Z = 0+1 = 1